GeForce GT 635M and Mobility Radeon X1800 - video card comparison
GeForce GT 635M
Mobility Radeon X1800
Architecture
Fermi (2010−2014)
R500 (2005−2007)
GPU code name
N13E-GE2
M58
Market segment
Laptop
Laptop
Release date
December 2011
March 2006
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
MXM-III
Boost clock speed
753 MHz
450 MHz
Core clock speed
Up to 675 MHz
6 MHz
CUDA cores
Up to 144
-
Floating-point performance
253.4 gflops
-
Manufacturing process technology
40 nm
90 nm
Number of transistors
1,170 million
321 million
Pipelines / CUDA cores
144
18
Power consumption (TDP)
35 Watt
-
Texture fill rate
Up to 16.2 billion/sec
5.400
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
256 MB
Memory bus width
Up to 192bit
256 Bit
Memory clock speed
1800 MHz
1000 MHz
Memory bandwidth
Up to 43.2 GB/s
32 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
9.0c (9_3)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
4.5
2.0
Shader Model
5.1
3.0
Vulkan
N/A
N/A
3D Blu-Ray
+
-
Optimus
+
-